Here we present and analyse an early, unpublished spectrum of SN 2010lp
obtained with the 8.1-m Gemini-North telescope equipped with the Multi-Object
Spectrograph GMOS-N. The data were obtained using the B600+G5307 disperser with
a a central wavelength of 500 nm and the R400+G5305 disperser with a central
wavelength of 750 nm. Observations were performed on Jan. 10, 2011
(MJD(avg)=55571.291; i.e., \(\sim 2\)  days after the time of maximum assumed by
[1]}. They consisted of 600 seconds of integration time, and cover the
spectral range 3570 to 9625 Å. The data were reduced using the gemini
gmos package contained within the IRAF environment. The extracted 1-D
spectra of SN 2010lp were flux-calibrated using a sensitivity function computed
from archival observations of the standard star BD+284211 obtained on
MJD 55534.27. The combined, flux-calibrated spectrum is shown in Fig. 1,
where it is compared with a coeval spectrum of SN 1991bg dereddened with
\(E(B-V)_{tot} = 0.05\)  mag assuming a standard extinction law [2]}.
